Effect of W content on the compression properties and abrasive wear behavior of the (TiB2–TiCxNy)/(Ni+W) composites

Wang, Yawei; Shu, Shili; Qiu, Feng; Zhou, Dongshuai; Wang, Jinguo; Jiang, Qi‐Chuan

doi:10.1016/j.matdes.2012.09.021

Cited by 15 publications

(5 citation statements)

References 24 publications

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“…When the V content was increased to a certain extent, a large number of VN phases appeared in the system. Similar results were reported by Wang [ 41 , 42 ]. In the (TiC x N y –TiB 2 )/Ni composites without the addition of W, only the Ni, TiC x N y and TiB 2 phases are detected, while in the composites with the addition of W, a few Ni 20 Ti 3 B 6 and Ni 3 Ti phases can be detected.…”

Section: Resultssupporting

confidence: 92%

“…Therefore, the average size of the ceramic particles in the cermets with 8 wt.% V content was larger than that with 5 wt.% V added. With the addition of W and Al, and the sizes of the ceramic particles continues to decrease due to the reduction of the maximum combustion temperature in the Wang’s works and our previous works [ 42 , 43 ].…”

Section: Resultsmentioning

confidence: 83%

“…When the V content was 5 wt.%, the ceramic particle size was at least 1.42 μm. With the addition of W and Al, and the sizes of the ceramic particles also decrease to less than 2 μm [ 42 , 43 ]. Figure 6 shows a statistical plot of the average size of ceramic particles with different amounts of Co and V cermets.…”

Section: Resultsmentioning

confidence: 99%

“…When the V and Co contents were continuously increased to 8 wt.%, the ceramics in the cermets in which the Co and V elements were respectively added were similar in size. The effect of V addition in Ni–Ti–B 4 C–BN system on the size of ceramic particles is stronger than that of adding W, Al and Co [ 42 , 43 ].…”

Section: Resultsmentioning

confidence: 99%

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Effects of V and Co Element Addition on Microstructures and the Mechanical Properties of In Situ Biphasic Hybrid (TiCxNy–TiB2)/Ni Cermets

Qiu

Duan

et al. 2018

Materials

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In situ micro-(TiCxNy–TiB2)/Ni cermets with different Co and V content (2,5 and 8 wt.%) were successfully fabricated by combustion synthesis and hot press consolidation in Ni–(V/Co)–Ti–B4C–BN systems. The results indicate that as Co content increased from 0 to 8 wt.%, the average sizes of the ceramic particles decreased, when the content of V increased from 0 to 8 wt.%, the size of the ceramic particles first decreased and then increased, and when the V content is 5%, the ceramic particle size is the smallest. The Co element did not participate in the SHS reaction and was a diluent; therefore, when the Co element was added, the combustion temperature continued to decrease. When the V content was no more than 5 wt.%, as the V content increased, the maximum combustion temperature decreased. When the content of V was less than 5 wt.%, the concentration of V was not sufficient to greatly promote the generation of VN. Therefore, V absorbed a large amount of heat during the reaction, resulting in a continuous decrease in the reaction temperature of the reaction system during the reaction. When the content of the added V continued to increase to 8 wt.%, V participated in the reaction, which was exothermic. The results indicate that as Co content increased from 0 to 8 wt.%, the average sizes of the ceramic particles decreased, and the cermets with 5 wt.% Co possessed the best comprehensive properties: the highest hardness (1967 Hv), superior compression strength (3.25 GPa) and higher fracture strain (3.3%). Correspondingly, when the V content was 8 wt.%, the ultimate compressive strength and hardness of the cermets reached 1823 Hv and 3.11 GPa, respectively, 262 Hv and 0.17 GPa higher than those of the unalloyed cermets, respectively. Furthermore, the effects of Co and V on strengthening mechanisms were analyzed.

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Section: Resultssupporting

confidence: 92%

Section: Resultsmentioning

confidence: 83%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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Effects of V and Co Element Addition on Microstructures and the Mechanical Properties of In Situ Biphasic Hybrid (TiCxNy–TiB2)/Ni Cermets

Qiu

Duan

et al. 2018

Materials

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“…Recent reports have demonstrated that the addition of Mo as binder in TiC-based cermets can improve its mechanical properties [27,28], which may be explained by the following mechanism: Mo increases the wettability between the binder and the ceramic phase by forming a Mo-rich shell around the TiC particles, which in turn helps in improving the properties of the cermets [29,30]. The mixing of additives with the matrix is generally carried out by manual mixing (hand mixing or agate mortar).…”

Section: Introductionmentioning

confidence: 99%

Mechanical and Tribological Properties of Al2O3-TiC Composite Fabricated by Spark Plasma Sintering Process with Metallic (Ni, Nb) Binders

Kumar

Chaubey

Maity

et al. 2018

Metals

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Al 2 O 3 -10TiC composites were fabricated through the powder metallurgical process (mechanical milling combined with spark plasma sintering) with the addition of Ni/Nb as metallic binders. The effect of binder addition (Ni/Nb) on the processing, microstructure, and mechanical and tribological properties of the bulk-sintered composite samples was investigated. The microstructure of the composite reveals a homogeneous distribution of the TiC particles in the Al 2 O 3 matrix. However, the presence of Ni/Nb was not traceable, owing to the small amounts of Ni/Nb addition. Hardness and density of the composite samples increase with the increasing addition of Nb (up to 2 wt. % Nb). Any further increase in the Nb content (3 wt. %) decreases both the hardness and the wear resistance. However, in case of Ni as binder, both the hardness and wear resistance increases with the increase in the Ni content from 1 wt. % to 3 wt. %. However, the composite samples with Nb as binder show improved hardness and wear resistance compared to the composites with Ni as binder.

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High-temperature compressive properties of TiC–TiB2/Cu composites prepared by self-propagating high-temperature synthesis

et al. 2013

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Effect of W content on the compression properties and abrasive wear behavior of the (TiB2–TiCxNy)/(Ni+W) composites

Cited by 15 publications

References 24 publications

Effects of V and Co Element Addition on Microstructures and the Mechanical Properties of In Situ Biphasic Hybrid (TiCxNy–TiB2)/Ni Cermets

Effects of V and Co Element Addition on Microstructures and the Mechanical Properties of In Situ Biphasic Hybrid (TiCxNy–TiB2)/Ni Cermets

Mechanical and Tribological Properties of Al2O3-TiC Composite Fabricated by Spark Plasma Sintering Process with Metallic (Ni, Nb) Binders

High-temperature compressive properties of TiC–TiB2/Cu composites prepared by self-propagating high-temperature synthesis

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